Ni-SPAN-C 902(UNS N09902) alloy wire,plate,bar,seamless pipe, stock

Introduction

NI-SPAN-C Alloy 902 is a heat treatable alloy designed primarily to obtain a constant modulus of elasticity in a useful temperature range of -50°F to 150°F . The addition of titanium to the nickel-chromium-iron alloy makes it hardenable by precipitation. It has outstanding properties of elastic modulus control and high strength, combined with unusually low drift and mechanical hysteresis.

Density: 8.10g/cm3

Curie point: 120~190°C(solution treated)

Character

Outstanding controllable thermoelastic coefficient characteristics

Can be processed to have constant modulus of elasticity from -45 to +65ºC (-50 to +150ºF)

Good for springs in watches and weighing equipment

Age-hardenable

Application

Diaphragms, leaf springs, helical springs, precision springs, mechanical resonators, precision elastic components.

Equal grades

Ni-Span C, Elinvar Extra, Sumispan-3, EL-3

Chemical composition (%)

Ni(+Co)=41.0-43.5

Cr=4.90-5.75

Ti=2.20-2.75

Al=0.30-0.80

C≤0.06

Mn≤0.80

Si≤1.00

S≤0.04

P≤0.04

Fe=reminder

Standards

SAE AMS 5221 - Strip, solution annealed

SAE AMS 5223 - Strip, 10% cold rolled

SAE AMS 5225 - Strip, 50% cold rolled

Forms available at A-one Alloy

Cold drawn wire, cold drawn bar, cold rolled strip, hot rolled plate, cold drawn pipe, hot rolled bar, hot forged bar.

We could supply cold drawn wire and cold rolled strip from EU & US. Stock items: cold drawn wire diameter 0.50mm & 0.75mm, bright finish, annealed.

Delivery

Stock items: cold drawn wire diameter 0.20, 0.35, 0.50mm, 0.75mm, 1.00mm in stock. Cold rolled strip thickness 0.1mm, 0.20mm and 0.30mm in stock.